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B8 Gas exchange & Respiration

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

to bring oxygen to the body

c)

to break down food and absorb nutrients

d)

to remove oxygen from the body and deliver carbon dioxide

2.
The movement by diffusion of oxygen and carbon dioxide across a membrane
a)
Ventilation
b)
Breathing
c)
Gas exchange
d)
Respiration
3.
Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area
II. Thin walls
III. Dry surfaces
a)
I and II only
b)
I only
c)
II and III
d)
I, II, and III
4.
The trachea leads to the...
a)
Bronchioles
b)
Bronchi
c)
Esophagus
d)
Pulmonary Vessel
5.

What increases during exercise?

a)

Breathing rate

b)

Heart rate

c)

Depth of breathing

d)

Blood pressure

6.

Gas exchange is needed to supply _____________ to cells and remove __________________

a)

carbon dioxide; oxygen

b)

oxygen; food

c)

oxygen; carbon dioxide

d)

carbon dioxide; water

7.

Function of cilia:

a)

Traps dust

b)

Moves mucus

c)

Traps bacteria

8.
Respiration is the 
a)
Intake of oxygen and release of carbon dioxide over a membrane
b)
Release of energy from food inside cells
c)
Mechanical movement to inhale and exhale air
d)
Feature that enable an animal to survive in its habitat
9.
a)
A
b)
B
c)
C
d)
D
10.

The air sacs that are covered with capillaries where gas exchange takes place.

a)

Bronchi

b)

Trachea

c)

Oxygen

d)

Alveoli

11.
Letter D is pointing to which Respiratory organ?
a)
Alveoli
b)
Diaphragm
c)
Lung
d)
Bronchi
12.

Which row correctly shows the what is produced during aerobic respiration?

a)

A

b)

B

c)

C

d)

D

13.

What is the word equation for aerobic respiration in plants?

a)

carbon dioxide + water ---> glucose + oxygen

b)

glucose + oxygen ---> carbon dioxide + water

c)

Glucose + carbon dioxide ---> oxygen + water

d)

glucose + water ---> carbon dioxide + oxygen

14.

Which is the correct, balanced, symbol equation for aerobic respiration?

a)

C6H12O6 + 6 O2 ---> 6 CO2 + 6 H2O

b)

C6H12O6 ---> 2 C3H6O3

c)

C6H12O6 ---> 2 C2H5OH + 2 CO2

d)

6 CO2 + 6 H2O ---> C6H12O6 + 6 O2

15.

The apparatus shown is set up and left for an hour. A gas is released by the mixture. It caused the indicator to go milky. What is the gas and what is the indicator solution?

a)

Gas: CO2 Indicator: lime water

b)

Gas: CO2 Indicator: universal indicator

c)

Gas: O2 Indicator: ethanol

d)

Gas: O2 Indicator: Hydrogen carbonate indicator

16.

Gaseous exchange happens because of...

a)

Osmosis

b)

Respiration

c)

Diffusion

d)

Semi-permeable membranes

17.

What part of the larynx produces your voice through air vibration?

a)

Adam's apple

b)

vocal cords

c)

tonsils

d)

trachea

18.

Inhale air has high concentration of

a)

Oxygen

b)

Carbon dioxide

c)

Oxyhaemoglobin

d)

Blood

19.

Which of the following air passage is correct?

a)

Nostril - Bronchus - Bronchioles - Trachea - Alveolus

b)

Nostril - Trachea - Bronchus - Bronchioles - Alveolus

c)

Nostril - Trachea - Bronchioles - Bronchus - Alveolus

d)

Nostril - Bronchus - Trachea - Bronchioles - Alveolus

20.

What is A

a)

Trachea

b)

Bronchus

c)

Bronchioles

d)

Alveolus